Pickled nasturtium seeds

‘Poor man’s capers’ is the other name for pickled nasturtium seeds, and it could not be more accurate: the little green seeds do taste remarkably like capers once preserved (they are OK raw, but better pickled). As a bonus, harvesting the green seeds means you are less likely to have nasturtiums cropping up where you don’t want them next year. The quantities here are deliberately non-specific to allow for as many or as few jars as you are able to fill from your plants.